baber/WOPTO huggingface dataset:
Patent JP-H07251305-A (JP)
Title: Power tool with chuck device
Inventor: TOOMASU RAITENBERUGAA
IPC: G01D5/22
Filed: 1995-02-14
Abstract: PURPOSE: To detect the opening width of a chuck device in the stationary state of a shaft in advance by forming a sensor for detecting the opening width of the chuck device in the stationary state of the electric motor of a power tool. CONSTITUTION: Chuck pawls 8 are formed so that a support 7 is slid along a shaft 2 without play in the axial direction via a wedge-shaped inclined plane when a chuck device is opened or closed. A sensor 5 is stationarily arranged on a casing 9 in the moving space of the support 7 along the shaft 2. When the chuck pawls 8 are opened to an opening width forming the clamping width, a voltage UA is generated on the coil of the sensor 5, and the sensor 5 is formed so that the value of the voltage UA is changed in response to the insertion depth of a magnetic ring 6 into the sensor electromagnetic field.
Patent JP-H03229604-A (JP)
Title: Filter cloth belt of electro-osmosis dehydrator
Inventor: SUZUKI SHIGENORI
IPC: B01D33/04
Filed: 1990-02-05
Abstract: PURPOSE:To stably support a filter cloth belt by providing a filter cloth belt consisting of a filter cloth and a pair of side belts and engaging the side belts with supporter pins planted in the side of a press belt. CONSTITUTION:A right side belt 4d and a left side belt 4d are engaged with supporter pins 8b planted in each caterpillar segments 8 on the side of a press belt 7, while connection ropes 4e of a filter cloth belt 4 are in a relaxed state. Under such conditions, the connection ropes 4e are tightened to stretch a filter cloth 4a for use. ln this case, the tension of the ropes 4e is adjusted slightly loose in advance, taking account of the thermal contraction of the cloth 4a due to the heat during the operation. In order to replace the cloth 4a with a new one, the ropes 4e are untied to remove the cloth 4a only, while the side belts 4d are in engagement with the press belt 2, so that the filter cloth is replaced with a new one. As a result, the dimensional errors of the filter cloth are absorbed by the tension of the connecting ropes, the thereby preventing side belt from being accidentally detached from the press belt.
Patent JP-H04248380-A (JP)
Title: Ultrasonic motor
Inventor: FUJIMURA TAKENAO
IPC: H02N2/00
Filed: 1991-01-25
Abstract: PURPOSE:To provide an elastic body, which is easily formed into an elastic body and is used for an ultrasonic motor, by preventing the elastic body from separating from a piezoelectric element during thermal change. CONSTITUTION:In an ultrasonic motor, where a mover 4 is pressed to an elastic body 2 to which a piezoelectric element 1 is bonded, the elastic body consists of low expansion nickel-iron cast, whose thermal expansion coefficient is 4X10<6>/deg or less and which contains 0.2-0.6wt.% carbon.
Patent JP-S59152994-A (JP)
Title: Viscosity reducing agent for coke and water slurry having high concentration
Inventor: NAKA AKIHIRO
IPC: C10L1/32
Filed: 1983-02-17
Abstract: PURPOSE:A viscosity reducing agent for coke and water slurry having high concentration, making pump transportation possible, containing a specific CMC (salt), a specified lignin sulfonic acid, etc. as essential components. CONSTITUTION:The desired viscosity reducing agent containing (A) a CMC (salt) having <=10,000 CP (preferably <=2,000 CP) viscosity of 2wt% aqueous solution at 25 deg.C and (B) formalin condensate(salt) of (alkyl)naphthalenesulfonic acid having 1.5-20 (preferably 2-5) average condensation degree in a weight ratio of the component A/A+B of usually 0.2-0.9 (preferably 0.3-0.7) as essential components.
Patent JP-H07207479-A (JP)
Title: Gaseous co2 generator
Inventor: ISHIKAWA YOICHI
IPC: C02F1/46
Filed: 1994-01-12
Abstract: PURPOSE:To obtain gaseous CO2 by making carbon arranged in an acidic electrolytic solution an anode to electrolyze water. CONSTITUTION:An anodic chamber 1 and a cathodic chamber 2 are separated by a diaphragm 3 to constitute a general H type cell. A carbon rod of an anode 5 immersed in an electrolytic solution 4 is fitted to a cover 6 of the anodic chamber 1. The anode 5 is covered with a bag 8 consisting of a hydrophilic raw material to prevent the carbon rod falling off from the anode 5 during electrolysis, and the generated gaseous CO2 is taken out from a takeoff port 7. The anode 5 may be carbon powder or carbon grains. The ratio of the gaseous CO2 to oxygen generated from the anode 5 depends on kinds of carbon and current density, and generally, much gaseous CO2 is generated from carbon having advanced crystallinity, and >=90% gaseous CO2 is generated form active carbon. The electrolytic solution 4 is preferably an acid of pH <=5, and as the electrolytic solution, a solution, such as that in which water is saturated with sulfuric acid, or potassium hydrogen phthalate or potassium bitartrate about 0.01mol or 0.05mol in every 1kg is used.
Patent JP-S61185156-A (JP)
Title: Production of ice cream having good palatability
Inventor: YONETANI TAKASHI
IPC: A23L9/20
Filed: 1985-02-13
Abstract: PURPOSE:To improve extremely overrun and to obtain ice cream having good palatability, by using succinic acid monoglyceride in a specific ratio as an emulsifying agent. CONSTITUTION:A raw material mixture for ice cream, consisting of de-fatted powdered milk, sugar, thick malt syrup, etc., is blended with 0.5-2wt% based on total weight of the raw material mixture of succinic acid monoglyceride as an emulsifying agent, and the blend is treated by a conventional procedure, to give the aimed product.
Patent JP-S60171602-A (JP)
Title: Magnetic head
Inventor: OZAKI HISAMI
IPC: G11B17/32
Filed: 1984-02-16
Abstract: PURPOSE:To seal a magnetic head slider from noises with a simple constitution and to eliminate causes of writing and reading errors, by directly covering the circumference of the magnetic head slider with a ring of highly conductive member and another ring of a member having a high magnetic permeability. CONSTITUTION:The outer periphery of a magnetic head 11 is sealed with a ring 14 of a member having a high magnetic permeability, such as ''Permalloy'', and the outer periphery of the ring 14 is sealed with another ring 15 of a highly conductive member, such as copper. When such arrangement is made, magnetic field noises, electric field noises, and electromagnetic wave noises occuring inside and outside of the device can be reduced. Therefore, noise shielding is ensured and the cause of writing and reading errors by the magnetic head 11 can be eliminated.
Patent JP-H09194142-A (JP)
Title: Fusing method and device of thread-like material
Inventor: MARUYAMA TETSUO
IPC: B65H54/71
Filed: 1996-01-19
Abstract: PROBLEM TO BE SOLVED: To fuse thread-like material securely regardless of the size of them. SOLUTION: This fusing device of thread-like material is composed of the first delivery mechanism 1 to deliver a thread-like material at a prescribed speed; a supporting mechanism 2 to support the second thread-like material to the first thread-like material in the crossing condition; a heating and fusing mechanism 3 to heat and fuse the crossing part of the thread-like material; and a storing mechanism 4 to store the prescribed amount of thread-like material for the jointing operation of the thread-like material.
Patent JP-H08223905-A (JP)
Title: Device for drive gate of gto thyristor
Inventor: KATO MASASHI
IPC: H02M1/06
Filed: 1995-02-15
Abstract: PURPOSE: To prevent an allowable anode-to-cathode voltage from being dropped without making a device large-sized by a method wherein a GTO thyristor is turned off by using the electric discharge of a backup capacitor in the service interruption of an external controlled power supply and a low-resistance short circuit part is formed across a gate and a cathode for the GTO thyristor. CONSTITUTION: The loss of the supply of electric power from an external controlled power supply 19 is detected by a service-interruption detection part 21. A signal VOFF which instructs the output of a turn-off gate signal is output to an ON/OFF-signal composition part 13. A backup capacitor 22 backs up a reverse bias voltage required until a GTO thyristor is turned off due to the discharge of its changed electric charge. As a result, the GTO thyristor can be turned off surely. In addition, by the stop of the output of a reverse-bias-drop detection part 24, a make and break contact 25b for a contact operating-type switching circuit 25 is closed, and a low-resistance short circuit part is formed. As a result, it is possible to prevent an allowable anode-to-cathode voltage from being dropped.
Patent JP-H10216974-A (JP)
Title: Laser beam welding method for plated steel plate
Inventor: YAMAZAKI SHINJI
IPC: B23K26/32
Filed: 1997-02-10
Abstract: PROBLEM TO BE SOLVED: To conduct lap joint welding hardly causing a blow hole and a warp after welding by forming the same height projecting parts on two facing plated steel plate faces, irradiating a region of the plated steel plate between the projecting parts and welding. SOLUTION: A projecting part 30 is formed for a first plated steel plate 10 by a half punch device, a second projecting part having a same height (h) is formed at a prescribed interval L. A second plated steel plate 20 is butted/ stacked on the two projecting parts 39 of the first plated steel plate 10. The region formed with the two plated steel plate 10, 20 between the two projecting parts is irradiated with a laser beam 50 from a laser beam irradiation nozzle 51 to be welded. The same height projecting parts are formed to both of two plated steel plate, the two plates can be stacked not to align the projecting parts. By this method, the configuration of weld zone is always kept same, there is no variance in welding strength, stabilized joint welding is made possible.
Patent JP-S55119006-A (JP)
Title: Displacement measuring instrument
Inventor: TAKABAYASHI HITOSHI
IPC: G01C3/00
Filed: 1979-03-09
Abstract: PURPOSE: To make the displacement of a measured body proportional to the change in an output, by placing the light reception face of a position detector so that the face coincides with the loci of a light spot image on the measured body, which take place when the body is displaced.  
     CONSTITUTION: A light beam from a light source 1 is converged into a thin irradiated light beam 3 by an irradiation lens 2. The thin beam is projected to a measured body 4 in parallel with its displacement to be measured. Reflected light 3' from the body 4 is received by a condensing lens 5 in a direction different from that of proceeding of the beam 3 to form a light spot image on a light receiver 7 in a position detector 6. The receiver 7 is so placed that the loci of the light spot image coincide with the light reception face of the receiver. The ratio between both photoelectric (currents) i 1 , i 2  of the light receiver changes depending on the position of the light spot image. The position y of the light spot image is determined by a calculator 8. The output of the calculator is applied to a compensation circuit 9 to perform compensation to make the displacement x of the body 4 and the output of the calculator 8 proportional to each other. 
     COPYRIGHT: (C)1980,JPO&Japio
Patent JP-H01201619-A (JP)
Title: Light beam scanner
Inventor: OZAKI TAKAO
IPC: G02B26/12
Filed: 1988-02-08
Abstract: PURPOSE:To reduce the form drag without narrowing a scanning range by performing the chamfering to a second corner part between an edge line and a chamfering part between plural reflecting mirror surfaces. CONSTITUTION:Chamfering is performed to the second corner part 19 in which corner parts 15, 17 to which chamfering is performed and an edge line between reflecting mirror surfaces of a polygon mirror intersect with each other, as well, and the generation of peeling is prevented. That is, in case of a state that chamfering is not performed to the corner part 19, this corner part 19 is pointed, and becomes a state that peeling is apt to be generated. As for each chamfering quantity, when width of the polygon mirror, the chamfering quantity in the first corner part and the chamfering quantity in the second corner part are denoted as h0, h1 and h2, respectively, it is desirable that h1, and h2 are set to 10%-40% of h0, and 10%-50% of h1, respectively. In such a way, by performing that chamfering to the corner part 19, the form drag is reduced. Also, since boundary parts 40, 41 between each reflecting mirror surface are left, the specular surface being effective for scanning can be secured.
Patent JP-S57142566-A (JP)
Title: Wave shaping circuit
Inventor: YAMADA KUNIHIRO
IPC: H03K5/1252
Filed: 1981-02-27
Abstract: PURPOSE:To make it possible to perform peak sensing without the influence of the variation in signal level of an input signal by applying an input signal to the first input terminal of a comparator and the output of a peak voltage holder to the second input terminal through a voltage divider. CONSTITUTION:When an input signal VIN goes up to a positive voltage, a diode D1 goes into the state to pass current, and a condenser C1 is charged. This charge voltage is divided by resistances R1 and R2, and applied to the input terminal for inversion of a comparator COM. Afterwards, the input signal VIN falls towards a negative voltage, and the diode D1 goes into the state to pass no current, and the output signal is not generated even if the input signal VIN rises to a positive voltage, when its maximum voltage is not larger than V1. When the input signal VIN reaches again a peak voltage, the capacitor C1 is charged again and an output signal VOUT is generated. By this, the set voltage for comparison is automatically corrected, and proper peak sensing can be made at all times.
Patent JP-S56124205-A (JP)
Title: Resin molded coil
Inventor: TERADA SETSUO
IPC: H01F5/06
Filed: 1980-03-03
Abstract: PURPOSE:To prevent the generation of crack in the resin of the resin molded coil by a method wherein an electromagnetic elemental coil is wound around without interposing an interlayer paper between them, and the mutual adhesive intensity between the windings is held less than the prescribed value before a thermosetting resin is to be poured in. CONSTITUTION:An electric wire 1 is wound around without interposing the interlayer paper between them to form the electromagnetic elemental coil, and the mutual adhesive intensity between windings of elemental coil is held to be less than 5X10<-2>kg/mm.<2> before the thermosetting resin 3 is to be poured in. For that purpose, when the interlayer 4 between the coil wires is formed applying a silicon resin by impregnation or dipping or when an electric wire having a silicon film to be used as a mold releasing agent for the electric wire insulating film is used, the adhesive strength can be held less than the prescribed value. Accordingly even if stress is generated by the difference between the coefficient of thermal expansion, because the joining faces between the electric wires 1 and the resin 3 are parted, no distorsion is remained in the resin 3. Therefore the generation of crack can be prevented.
Patent JP-H07233259-A (JP)
Title: Production of polycarbosilane
Inventor: HAYAKAWA KIKUKO
IPC: C08G77/60
Filed: 1994-02-24
Abstract: PURPOSE:To produce a high-molecular-weight polycarbosilane in good yields under mild conditions. CONSTITUTION:This production process is one comprising subjecting a cyclosilaalkane containing at least two silicon atoms to a ring opening polymerization reaction in the presence of a rhodium catalyst, wherein the substituents bonded to the silicon atoms are monovalent hydrocarbon groups, alkoxyl groups or halogen atoms.
Patent JP-S56122566-A (JP)
Title: Digital compounding circuit
Inventor: YAMAGUCHI TAKEHIKO
IPC: H04M3/56
Filed: 1980-03-03
Abstract: PURPOSE:To simplify circuit and elevate the processing efficiency by storing plural sound digital code words in the register, compounding them by a simple means, and inputting a digital code word corresponding to the composite sound in the address of the ROM, which has been stored in advance. CONSTITUTION:In the digital conference communication, the digital encoded sounds of speakers A, B are temporarily stored in the register circuits 1, 2, respectively. When the signals stored in the circuits 1, 2 are, for instance, the PCM code words of 8 bits, respectively, they become a composite digital word of 16 bits at the output side of the circuits 1, 2, and it is applied to the address terminal of the ROM 3 of 64K words. In this address of the ROM3 is stored a PCM code word corresponding to the result which has been obtained by compounding and adding the digital codes of 2 words of speakers A, B, and it is output from the output terminal. In this way, since a compolicated linear and nonlinear code converting circuit, etc. become unnecessary, the circuit is simplified remarkably and a circuit with good compounding efficiency is obtained.
Patent JP-H09218355-A (JP)
Title: Scanning laser microscope
Inventor: NAKAGAWA SHUJI
IPC: G02B21/00
Filed: 1996-02-14
Abstract: PROBLEM TO BE SOLVED: To provide the scanning laser microscope with a focus adjusting function which can detect a focusing position precisely and speedily. SOLUTION: A pinhole 6 is put away from an image formation position and a nonconfocal point is detected by an optical detector 7 to find a rough focusing position. Then the pinhole 6 is arranged on the photodetection surface of the optical detector 7, which further detects a confocal point as to the range of the rough focusing position obtained by the nonconfocal point detection to find a focusing position in a narrow range.
Patent JP-S56161924-A (JP)
Title: Feeder for body, which is entered in vessel, inside thereof is sterilized, and is previously sterilized, for sterilizing packing plant
Inventor: KATERI KAMIRO
IPC: B65B55/02
Filed: 1981-02-27
Abstract: The device substantially comprises a chamber (1) within which a sterile atmosphere is created at a pressure slightly higher than the atmospheric pressure, which communicates, by means of a valve-operated aperture (2) with a sterile environment into which the objects are to be transferred. The receptacle (10) containing the objects is secured in correspondence with a second aperture (3) in the chamber, a sterile atmosphere is created within the chamber, and the lid (10b) of the receptacle is removed by mechanical means. 
<??>The objects drop to the bottom of the chamber and by acting upon the valve, are transferred to the sterile environment.
Patent JP-H08199571-A (JP)
Title: Back-stay assembly/disassembly jig of pile driver
Inventor: MIYATA KENICHI
IPC: E02D13/00
Filed: 1995-01-23
Abstract: PURPOSE: To prevent the rolling of cylindrical members when bolts and nuts are fastened or loosened and to promote work efficiency when a back-stay is assembled or disassmbled. CONSTITUTION: A back-stay assembly/disassembly jig 21 is constituted of a jig main body 22 formed in a long and slender plate shape, an interlocking section 23 provided in the basic end side of the jig main body 22 and provided with two interlocking holes 24 interlocked with heads 13A of two adjacent bolts 13, and a ground section 25 coming into contact with the ground G positioned to the front end side of the jig main body 22 and separated from cylindrical members 11 in the direction of the diameter.  Accordingly, when the bolts 13 are fastened for connecting the cylindrical members 11, the jig 21 prevents the cylindrical members 11 from rolling by bringing the ground section 25 into contact with the ground G while interlocking the interlocking holes 24 of the interlocking section 23 with two bolts 13 by which the cylindrical member 11 are going to be rolled when the bolts are fastened, and the bolts 13 are interlocked with the interlocking section 23 to prevent the rotation.
Patent JP-H02250855-A (JP)
Title: Preparation of anthraquinone derivative
Inventor: HERUMUUTO HOTSUHO
IPC: C07C231/02
Filed: 1990-02-08
Abstract: PURPOSE: To obtain a compound useful as precursors of vat dyes at high purity and in high yield by reacting anthraquinone carboxylic acids with aminoanthraquinones in the presence of tertiary nitrogen bases.  
     CONSTITUTION: An anthraquinone carboxylic acid or its derivative of the formula A 1 -COX (wherein A 1  is anthraquinone or anthraquinoid; and X is hydroxyl, Cl or Br) is reacted with an aminoanthraquinone of the formula A 2 (NH 2 ) n  (wherein A 2  is anthraquinone or anthraquinoid; and (n) is 1 or 2) in the presence of a tertiary nitrogen base in a solvent such as nitrobenzene at 130-160°C to obtain an anthraquinone derivative of the formula (A 1 -CO-NH-) n A 2 . The tertiary nitrogen base is such a base as neigher an N-heteroaromatic compound itself nor that containing aromatic or heteroaromatic groups bonded directly to nitrogen atoms, and N,N-dimethylcyclohexylamine, for example, is employed in an amount of 0.01-1 mole per mole of anthraquinone carboxylic acid. 
     COPYRIGHT: (C)1990,JPO
Patent JP-H05192645-A (JP)
Title: Washing work car
Inventor: KURODA MASASHI
IPC: A47L11/40
Filed: 1992-01-18
Abstract: PURPOSE:To provide the washing work car which can turn the tip part of a boom in a desired direction. CONSTITUTION:A first member 2a for constituting the extreme tip part of a boom of the washing work car is attached to a second member 2b in its rear so as to be freely tiltable in the vertical direction with a horizontal pin 3. Also, a second member 2b is attached to a third member 2c in its rear so as to be freely tiltable in the left and the right direction with a vertical pin 7. In such a way, the tip part can be tilted freely in a desired direction by combining the tilting around the pins 3, 7.
Patent JP-S61187328-A (JP)
Title: Manufacture of compound semiconductor element
Inventor: KAGAWA SHUZO
IPC: H01L29/812
Filed: 1985-02-15
Abstract: PURPOSE:To relieve the thermal strain working on an interface between semiconductor layers with different compositions by a method wherein epitaxial layers with different compositions are subjected to etching that reaches a compound semiconductor substrate in interelemental region and then an element forming process including a heat treatment process is performed. CONSTITUTION:An InP buffer 2, an InGaAs 3 and an InP cap 4 are laminated on an InP substrate 1. Then an Si3N4 5 coated by means of plasma CVD process is patterned to etch grooves reaching the substrate 1 at the ratio of Br:HBr:H2O =1:17:34. Next the film 5 is opened to form diffused layers 6 with reverse conductive type to the substrate fitting the layers with Au/Zn/Au electrodes 7 likewise fitting the substrate 1 with AuGeNi electrode 8. In such a constitution, the characteristics of semiconductor element may be improved remarkably since the thermal strain working on a wafer is relieved to restrain any damage from being done.
Patent JP-S59154612-A (JP)
Title: Pcm recorder
Inventor: OKAMOTO HIROO
IPC: G11B20/10
Filed: 1983-02-23
Abstract: PURPOSE:To record efficiently a PCM signal having a different sampling frequency in an identical system by changing a reference clock frequency proportional to a sampling frequency and also changing a tape speed. CONSTITUTION:A frequency oscillated from a crystal oscillator 16 is a frequency being an integral multiple of the reference frequency to two kinds of sampling frequencies. The sampling frequency to sample-and-hold circuits 2, 14, an A/D converter 3 and a D/A converter 13 is changed over by a switch 22 by frequency-dividing the oscillated frequency at frequency division circuits 20 and 21 respectively. Although the recording state on a tape is identical when the tape speed is changed by a tape speed control circuit 23 depending on the sampling frequency. Since the recording frequency is different, waveform equalizing circuits 11 and 18 are changed over by a switch 19.